Whether you're sipping your morning coffee or having a warm after-dinner drink, this set of ocean-inspired mugs with a two-tone interior is perfect for bringing a beautifully organic touch to your day. two-tone color with a crackle finish microwave safe set of 4 Stoneware. Each mug measures 51⁄4x33⁄4x4?H. Dishwasher safe. Imported.